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← ScienceWhich outcome occurs when photon energy matches the potential barrier in SEM detector material to produce an electron?
A)Electron Emission via photoelectric effect✓
B)Increased detector resistance via ionization
C)Reduced secondary emission via tunneling
D)Stimulated X-ray emission via fluorescence
💡 Explanation
When photon energy matches the potential barrier, the photoelectric effect occurs because the photon transfers its energy to an electron, allowing it to overcome the work function and be emitted. Therefore electron emission results, rather than resistance change, reduced emission, or x-ray emission which require different energy conditions.
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